CVE-2025-50817

Disputed code execution via sys.path module shadowing

Published Aug 14, 2025 · Updated Sep 26, 2025

A disputed code-execution claim in Python-Future 0.14.0 and later says local users can run code by placing test.py on sys.path. The standard_library module executes a bare import test while patching Python 2 compatibility, so Python resolves and runs the first matching test.py on sys.path. The advisory was withdrawn because this is documented Python import behavior, and the claimed prerequisite already requires write access to an importable directory.

CVSS severityUnavailable
Unscored
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

A disputed code-execution claim in Python-Future 0.14.0 and later says local users can run code by placing test.py on sys.path. The standard_library module executes a bare import test while patching Python 2 compatibility, so Python resolves and runs the first matching test.py on sys.path. The advisory was withdrawn because this is documented Python import behavior, and the claimed prerequisite already requires write access to an importable directory.

The record

CVE
CVE-2025-50817
Published
Aug 14, 2025
Updated
Sep 26, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1059.006
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.3GitHub Advisory DatabaseCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1059.006Command and Scripting Interpreter: Python

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo